Home / 3,712.02-5,122.41-2,220.06

Finding the Fourth Proportional to 3,712.02, 5,122.41 and 2,220.06

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Solution

The fourth proportional to 3,712.02, 5,122.41 and 2,220.06 is: 3,063.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.02 : 5,122.41 = 2,220.06 : x
  2. Step 2: Convert to fraction form
    3,712.02/5,122.41 = 2,220.06/x
  3. Step 3: Cross multiply
    3,712.02x = 5,122.41 × 2,220.06
  4. Step 4: Simplify right side
    3,712.02x = 11,372,057.54
  5. Step 5: Solve for x
    x = 11,372,057.54/3,712.02
  6. Step 6: Final answer
    x = 3,063.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.